SFTP: Setup and configure SFTP server
TElSFTPServer class is a low-level class that acts as a data processor. Each instance of TElSFTPServer handles one SFTP subsystem connection.
TElSFTPServer handles client requests by firing the corresponding events. So when you create or initialize the pre-created instance of TElSFTPServer, you need to handle its events, related to filesystem operations.
Optionally you can adjust other properties of TElSFTPServer, such as supported versions of SFTP protocol or setup charset conversion and use of UTF8.
See this how-to article about how TElSFTPServer is related to other the SSH server classes.